Device for oil-wells.



PATENTED malls, 1906.

' H. WILSON.

DEVICE POR OIL WELLS.

APPLICATION FILED FEB. 2]., 1905.

HENRY WILSON, AOF EMLENTON PENNSYLVANIA.

' DEVICE FoR'olL-WELLS.

Specification of Letters Patent.

Patented Feb. 13, 1906.

Application filed February 21,1905. Serial No. 246,775.

To @ZZ whom it nca/y con/cern:

Be it known that I, HENRY WILSON, a citizen of the United States of America, residing at Emlenton, in the county of Venango and State of Pennsylvania, have invented certain new and useful Improvements in Devices for Oil-Wells, of whichy the following is a specification, reference being had therein to the accom anying drawings.

T 's invention relates to certain new and useful improvements in oil-well devices, and has forits object the provision of novel means to agitate the oil in the oil-sand formation to increase the flow of a well equipped with my improved device.

The invention aims to provide a device which can be readily used in connection with oil-well-pumping mechanisms, such as working barrels and stand-valves, to increase the output of the well, and to relieve the pumping mechanism employed in connection with the well. To accomplish this, I have employed' a novel form of valve which permits of agitating means being employed within the working barrel of an oil-well, the agitating means being employed to at all times keep the oil in circulation in the oil-sand formation.

With the above and other objects in view the invention finally consists in the novel construction, combination, and arrangement of parts, which will be hereinafter more fully described and then specifically ointed out in therclaims, and, referring to t e drawings accompanying this application, like numerals of reference designate corresponding parts throughout the several views, in which- Figure 1 isa vertical sectional view of a portion of an oil-well, illustrating the pumping mechanism equipped with my improved device. Fig. 2 is a vertical sectional view of a special form of valve which I employin connection with my device.. Fig. 8 is a transverse sectional view taken on the line x of Fig. 2. Fig. 4 is a top plan view of one of the washers comprising the yagitating means, and Fig. 5 is a sectiona view of the same.

In the accompanying drawings the reference-numeral 1 designates an oil-sand formation which has been drilled, and the reference-numeral 2 designates the outer casing, which is mounted in the well to protect the pumping mechanism and assist in the drilling of the well The upper working barrel is designated by the reference-numeral 3, and the lower working barrel is designated by the illustrated in Fig. 2 of the drawings.

reference-numeral 4. These barrels are of the ordinary and well-known type commonly used in the oil districts at the present time, and myinvention resides in interposing a perforated section of pipe 5 between the upper and lower working valves. This section of pipe is preferably located directly beneath a standing valve 6, and the pipe is provided with a plurality of perforations 7.

In order that I may employ my improved device within an oil-well, I have constructed a special form of standing valve, which his T e present type of standing valve does not permitof my device being used. Therefore I have constructed a valve through which the pumping-stem 8 of the pumping mechanism may extend. The valve comprises a cylindrical portion 9, the upper end of which is provided with upwardly-extending curved arms 10 10, carrying a stuffing-box 11 of a conventional form. The top of the cylindrical portion 9 is formed with a valve-seat 12, and the pumping-Stem of the rod 8 is provided with a valve 14, which is loose on the stem and which is adapted to engage within the valve-seat 12 after oil has been elevated through the cylindrical portion 9. The periphery of the cylindrical portion 9 is provided with a plurality of cups 15, these cups.

being employed in lieu of the Babbitt rings heretofore used in connection with valves.

By providing a valve through which the operating rod or stem 8 protrudes I am enabled to provide a plurality of agitatingwashers 16, which are mounted upon the rod directly beneath the perforated pipe-section 5. One of these washers is clearly illustrated in Figs. 4 and 5 of the drawings, and each washer is provided with a plurality of apertures 17, through which the oil being pumped is adapted to pass. t

The operation of my improvement is as follows: The lower working'barrel 4 is provided, as usual, with a standing valve below the lower working valve, and the rod 8 being depressed the oil which has accumulated above the lowermost standing valve will be forced through the lowermost working valve, and then upon the upward movement of the rod 8 the oil will be lifted through the cylindrical portion 9 of the standing valve 6, a small portion of the oil being during this movement of the rod forced through the perforations 7 in the pipe-section 5, these perforations being of course very minute and their IOO IIO

total discharging capacity being very much less than would be sufficient to discharge all the oil lifted by the lower working valve. After the oil has been lifted through the standing valve portion 9 the valve 14 will close, and upon the next downward movement of the rod the oil will be forced through the upper working valve, by the movement of which it is eventually lifted out of the well. Upon the downward movement of the rod 8 a portion of the oil which has been forced through the perforations 7 during the upward movel ment of the rod will run back into the casing,

and by the movement of the oil into and out of the casing and by means of the perforated washer 16 the oil will be agitated within the working barrel and a portion thereof will be forced into and drawn out of the sand in the vicinity of the perforated section 5 and the sand thus kept in a moistened condition by the oil, and by keeping the oil thus agitated in the sand the accumulation of sediment or thick heavy deposits in the sand is obviated and the capacity of the well increased.

I do not care to confine myself to the exact number of agitating-washers which I may employ upon the operating stem or rod nor to the particular construction of the valve which I employ, it only being necessary that the operating rod or stem passes through said valve in order to support the agitating-washers of my improved device.

It will be noted that various other changes may be made in the details of construction without departing from the general spirit and ccpllof the invention.

at I claim, and desire to secure by Letters Patent, is-

. 1. In a device for oil-wells, the combination with a working barrel and a standing valve, of a working valve, a rod passing through the standing valve and connected to the working valve and agitating means carried by said rod, said working barrel being perforated above said agitating means.

2. In a device for oil-wells, the combination with a Working barrel constructed in three'sections, the intermediate section being perforated, of a plurality of working valves, a standing valve located below the lower of said working valves, a standing-valve body located between said working valves, said valve-body having a seat formed therein, a valve arranged in said valve-body, a rod extending through said valve-body and through the valve arranged therein and connected to said working valves and agitating means carried by said rod between the lowerrnost working valve and the said valve-body, and adj acent to the perforated section of the working barrel.

3. In a device for oilwells, the combination with working barrels and Working valves arranged in said barrels, of a section of perforated pipe interposed between said barrels, a valve-body mounted between said working valves, a rod extending through said valvebody and connecting with said working valves, a valve carried by said rod and adapted to seat in said valve-body, and agitating means carried by said rod, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

HENRY WILSON.

Witnesses:

CHARLES G. TOMEY, HERMAN L. GIERING. 

